Have a great trip to Chicago, and come back with a DSLR body and a 50mm f1.8...

Since technically speaking almost any of the DSLRs we've mentioned will do the job you're after, go for whichever body you most like the look and feel of... there's so much to be said for picking the thing up in person, and you did just mention you didn't like the E-510 becuase it wasn't eye catching...